Embossing attachment for printing-presses.



F. W. REED. EMBOSSTNG ATTACHMENT TOR PRINTING PRESSES.

APPLICATION FILED. NOV. 24.1913.

Patented Apr. 24, 191?.

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7 fwnay UNITED STATES PATEN T OEETCE.

FRED W. REED, OF SOUTH BEND, INDIANA.

EMBOSSING ATTACHMENT FOR PRINTING-PRESSES.

To all whom t may concern,.-

Be it known that l, Func W'. Renn, a citizen of the United States of America, residing at South Bend, in the county of St. Jo-

-seph and State of Indiana, have invented certain new and useful Improvements in Embossing Attachments for Printinglresses; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to embossing attachments for printinopresses, and more particularly to an embossing die heating plate adapted to be attached to the bed of an ordinary printing press, and its object is to provide a device of this character which will be cheap in construction, effective in operation, which may be mounted in the chase and attached to the bed of an ordinary printing press without altering the same in any way, and to provide the device with certain new and useful features hereinafter more fully described, and particularly pointed out in the claim.

In the processof embossing, it has been found desirable to have one of the embossing dies heated, preferably the female die, as this prevents the paper from cracking and tearing when it is pressed between the dies. It has been common practice to provide an embossing press built especially for this kind of work, in which the bed of the press is adapted to be heated by convenient means and the embossing die clamped to the bed receives the heat therefrom. These machines are necessarily expensive, and because of their expense they can only be afforded by firms doing a large business. Furthermore, it is wasteful to heat the entire bed of the printing press when only a small embossing die is used thereon.

This invention is adapted to overcome the above mentioned objectionable features by providing an embossing die heating plate in which is embodied an electric heating coil by which the plate may be heated by any convenient electric current, such as an electric light current, and this plate is provided with means for attaching an embossing die to its surface. The combined plate and die are of a thickness equal to the height of ordinary type and the plate may be mounted in the chase of the printing press and attached to the bed thereof without any altera- Specification of Letters Patent.

Application filed November 24, 1913.

Patented Apr. 24, 1917. sei-iai No. 802,709.

tion of the same. The device is provided with various novel features of construction and arrangement which will more fully appear by reference to the accompanying drawings, in which Figure l is a perspective view of a heating plate made in accordance with this invention, shown in operative position in the chase of a printing press and having an embossing die clamped to its face;

Fig. 2 is an inverted plan view of the heating plate withl parts broken away to show the arrangement of the electric heating coil;

Fig. 3 is an enlarged sectional elevation of a portion of the plate showing details of its construction and the preferred means of clamping the die to the plate; and

Fig. 4 is a transverse section on the line sa of Fig. 3.

Like numbers refer the figures.

.l represents the heating plate, preferably formed of a block of metal rectangular in plan view and having its under side milled out to provide a recess in which to lay the coiled resistance wire 2, which forms the electric heating coil for the plate. Transversely extending webs 8 are left integral with the plate and serve as supports for the middle portion thereof` The heating coil 2 may be of any desired well known form, but is preferably made by embedding the coiled resistance wire in non-conducting cement 4, which is placed in the recessed under side of the plate and the ends 5 of the coil are brought through the side of the plate and attached to a suitable socket, (not shown) by which they may be connected with any convenient electric circuit.

The upper face of the plate is preferably provided with longitudinal and transverse dovetail grooves 6, in which are adjustable dovetail nuts 7, each forming one part of the clamping devices. A clamping block 8 having one beveled edge is provided for each nut 7 and is attached thereto by a screw 9, and the embossingi die l0 has its edges correspondingly beveled and adapted to be engaged by the beveled clamping blocks 8, which when tightened by means of the screws -9, hold the die firmly between the nuts 7 and clamping blocks 8 in place on the face of the heating plate. The assembled plate and die have a combined thickness which is just type-high or equal to th'e height of ordinary type, which enables the to like parts in all of said plate and die to be used in place of the type on the bed of an ordinary press. rl`he plate is adapted to be clamped in the chase 11 of the press by means of the ordinary printers7 'furniture l2 and quoins 13, and the Whole mounted on the bed of the press as though it were type. The male or opposite die member is attached tothe platen o the press and the device is then ready for operaion.

lt will be noted that this device provides an extremely simple and cheap apparatus :for heating embossing dies, and is particularly Well adapted lier heating small dies and may be solo so cheaply that it can be afforded by printers doing comparatively little embossing Work, who could not aiord to buy the large expensive machines built expressly for embossing purposes.

Furthermore, the heat is distributed over a comparatively small area and is applied to the die in the most economical and e'lective Copies of this patent may be obtained for Way. If s0 desired, a rheostat may be included in the electric circuit to regulate the heat oi the plate.

lVhat I claim is In an embossing attachment for printing presses, a supporting block consisting of a shell, a plurality of transversely extending,r Webs formed integral uith said shell and providing a plurality of recesses, non-conducting cement in said recesses, a coiled resistance Wire embedded in said cement whereby said supporting bleek may be electrically heatedand means on the -l'ace of the supporting block for securing an embossing die.

In testimony whereof l. aliix my signature in presence of two Witnesses.

FRED lV. REED.

Vitnesses z C. W. Conn, D. M. Conn.

ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

